Definition of extemporary in US English:

extemporary

adjective

  • Spoken or done without preparation.

    ‘an extemporary prayer’
    • ‘It reflects the fact that it is a December 22 extemporary judgment, perhaps.’
    • ‘These are contrasted with ideas that are merely ‘arbitrary, rationalistic, or willed’, based on extemporary polemics.’
    • ‘The format must be manipulated and contrived to prevent anything extemporary or natural from happening on the screen.’
    • ‘An extemporary campaign organised on an Internet discussion forum resulted in a flood of complaints to the news station.’
    • ‘It is said that he was the first to introduce extemporary praying in public worship, an important development which took place at this time.’
    • ‘The judgment says what it says, and we are not going to say anything extemporary which modifies what we have said in the judgment.’
    extempore, extemporaneous, impromptu, spontaneous, unscripted, ad lib, on-the-spot
    View synonyms

Origin

Late 16th century: from extempore, on the pattern of temporary.

Pronunciation

extemporary

/ɪkˈstɛmpəˌrɛri//ikˈstempəˌrerē/